Ridge-cracked blisters form when ridge cracking occurs in a biaxially compressed film on a relatively rigid substrate during buckle-delamination. The observation of telephone-cord (TC) blister with wavy ridge crack indicates that the ridge-cracked blister is not straight-sided as it used to be. How ridge cracking influences the profile of buckle-delamination remains unclear. Based on Föppl–von Kármán (FvK) nonlinear plate theory, we derive an improved analytical solution for a better description of the cross-sectional profile of the straight-sided blister with straight-sided ridge crack through considering the effect of hinge position caused by the ridge crack. Following a similar procedure in the case of the straight-sided ridge-cracked blister, an approximate solution of FvK plate in curvilinear coordinates is further obtained for the cross-sectional profile of the TC ridge-cracked blister. The results show that the position of the ridge crack significantly modifies the asymmetry, the shape, and the maximum deflection of the cross-sectional profile of the resulting blister.

当在搭扣脱层期间在相对刚性的基底上的双轴压缩膜中发生脊裂时，就会形成脊裂水泡。观察到带有波纹的山脊裂纹的电话线（TC）水泡表明，山脊裂的水泡不像以前那样是直边的。脊裂如何影响带扣分层的轮廓仍不清楚。基于Föppl–vonKármán（FvK）非线性板理论，我们通过考虑铰链位置引起的铰接位置影响，推导了一种改进的解析解决方案，以更好地描述带有直脊裂纹的直泡的横截面脊裂。按照类似的步骤处理直边脊裂水泡，对于TC脊裂水泡的横截面轮廓，还可以得到FvK板在曲线坐标下的近似解。结果表明，脊裂纹的位置显着改变了所得水泡横截面轮廓的不对称性，形状和最大挠度。